En breve: Hay tres formas del superlativo…

1. Los adjetivos cortos: …The Amazon is the longest river in the world.
2. Los adjetivos largos: …Brad Pitt is the most handsome man in Hollywood.
3. Los irregulares: …Joey Deacon is the best skier in the world.

1. Los adjetivos cortos: SE AÑADE… est…. AL FINAL

Tammy is the shortest woman in the office.
Dia is the cheapest supermarket in spain.